首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1112篇
  免费   58篇
  2023年   15篇
  2021年   5篇
  2020年   12篇
  2019年   39篇
  2018年   48篇
  2017年   59篇
  2016年   59篇
  2015年   38篇
  2014年   43篇
  2013年   293篇
  2012年   40篇
  2011年   35篇
  2010年   28篇
  2009年   30篇
  2008年   24篇
  2007年   32篇
  2006年   22篇
  2005年   19篇
  2004年   22篇
  2003年   16篇
  2002年   31篇
  2001年   23篇
  2000年   14篇
  1999年   20篇
  1998年   22篇
  1997年   13篇
  1996年   12篇
  1995年   12篇
  1994年   8篇
  1993年   5篇
  1992年   9篇
  1991年   6篇
  1989年   6篇
  1988年   3篇
  1987年   8篇
  1986年   5篇
  1985年   8篇
  1984年   4篇
  1983年   5篇
  1982年   5篇
  1981年   5篇
  1980年   9篇
  1979年   10篇
  1978年   4篇
  1977年   8篇
  1976年   5篇
  1975年   5篇
  1974年   4篇
  1973年   8篇
  1972年   3篇
排序方式: 共有1170条查询结果,搜索用时 15 毫秒
91.
This article seeks, first, to respond to some of the more pertinent points raised in the 'new regionalism' debate, like how 'regions' are constituted and how the 'regional scale' relates to other scales in what I call the 'multi-level polity' in the European Union. Second, it explores the potential of regional innovation strategies in the context of less favoured regions and argues that they have an important role to play in regional renewal even though their impact to date has been modest. Finally, it suggests that the most limiting aspect of the 'new regionalism' debate is that virtually all contributions tend to confine themselves to an inordinately narrow metric of development and, wittingly or not, this tends to conflate what is instrumentally significant with what is intrinsically significant, a conflation of means and ends  相似文献   
92.
This article considers suburban development in Australia through the lens of its second largest city, Melbourne. Contemporary urban policies have focussed on the low densities within Australia's capitals and tried to achieve sustainability through urban consolidation policies. The article argues that these policies are often based on a distorted understanding of the relationship between housing markets and labour markets in Australia's large metropolises. The analysis of suburban development in Melbourne shows that suburban development involves complex links between changes in housing and job location and that urban sustainability policy needs to include actions designed to change the distribution of employment as well as the location and density of housing. The article shows that the vast spread of the Melbourne population masks closely linked regional labour and housing markets.  相似文献   
93.
94.
95.
96.
The questions addressed in this paper are: (i) does wage inequalityincrease with local population size, and if so, (ii) what arepossible factors behind this increase? In a cross-section analysisof Swedish local labour markets using unique full populationdata, the article shows that urban scale, i.e. size of localpopulation, has significant positive effects on wage inequality.Testing for potential explanations, labour market diversification,human capital, migration, age structure and employment are shownto be significantly associated with inequality. Given theseeffects, the article raises the question of how to understandand incorporate scale effects into models of long-term changein wage inequality.  相似文献   
97.
In the context of education in England, an argument is put forward that Geography, as it is conceptualised in the National Curriculum, does not connect to either primary school pupils or their teachers. Reasons for this are explored and a proposal is made for a new paradigm for primary geography: ethnogeography. This proposal parallels work on ethnomathematics, which provides a political agenda to the study of maths and itself draws from Paulo Freire's politicization and consciousness raising through adult literacy. This pattern is applied to learning in geographical education. Drawing on the findings of a recent research project, a case is argued for ethnogeography and the implications for primary Initial Teacher Education courses, learners and the curriculum in primary schools and are considered.  相似文献   
98.
As contemporary society is increasingly structured around highly diverse flows of people, goods, and information, mobile populations will contribute more and more to the economic, environmental and social performance of their destinations. However, planning is largely focused on residential populations and their contribution to the performance of places and hardly pays attention to the implications of people on the move for these places. In this study, we propose an alternative approach towards the assessment of the performance of places by comparing mobile and residential populations. An empirical analysis of the Netherlands National Travel Survey suggests that planning could profit by analysing mobile populations and exploring the desirability and feasibility of influencing their decisions.  相似文献   
99.
The analysis of phytoliths, pollen, charcoal and other macroremains was carried out in the neolithic shelter of “La Grande Rivoire”, Vercors massif (French Alps). The results show the predominance of tree species, in the form of phytoliths, clustered pollen, stomata, small branches charcoal, needles, bark, buds… The practice of leaf fodder is already known in the alpine and circum-alpine area from archaeological and historical sources. The analyses of the neolithic dung levels of “La Grande Rivoire” illustrate the use of leafy and flowering tree branches as fodder. The results also suggest that some species were used for special purpose in relation with the tending of livestock (litter, dietary supplement, veterinary practices).  相似文献   
100.
Palynology, radiocarbon dating, and open-section stratigraphies from archaeological trenches are used to examine the impact of human activity around the time of Norse landnám on vegetation and landscape associated with a small farm (Ø34) in the Qorlortoq valley, Eastern Settlement, Greenland (61° N 45° W). Peat deposits from a mire abutting the Norse ruins revealed a discontinuous palaeoenvironmental record containing a possible hiatus from ca. AD 410–1020. Palaeovegetational data were recovered either side of this period. Pollen assemblages suggest that open Salix scrub dominated the landscape during the pre-settlement phase. The later phases of landnám resulted in the creation of hay fields and heavily-grazed grassy heath. Site abandonment is reflected by a re-expansion of Salix. This occurs shortly before the onset of deposition of a Sphagnum peat, dated to cal AD 1420–1630 (2σ) and reflecting an increase in mire surface wetness, probably in response to a deteriorating climate. Radiocarbon dates were obtained on peat and plant macrofossils sampled from either side of the proposed hiatus at two different but closely-spaced (<20 m) locations across the mire. These produced significantly different dates for the cessation of peat formation in the pre-landnám period (cal BC 2130–1770 and cal AD 240–410 respectively), but near-synchronous dates for the recommencement of peat growth (cal AD 890–1150 for peat and a probably more reliable interval of cal AD 1020–1190 based on plant macrofossils). It is suggested that this hiatus may represent the first direct evidence for peat cutting in Norse Greenland.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号